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## Homework Statement

A shaft is turning at 73.8 rad/s at time zero. Thereafter, its angular acceleration is given by

a = -10.1 rad/s2 - 4.44 t rad/s3.

where t is the elapsed time. Calculate its angular speed at t = 2.58 s

## Homework Equations

1/2(Angular accel formula)+ 73.8t+0= theta final

## The Attempt at a Solution

do i take the integral of the accel formula then the velocity the plug in 2.58?